Article
  • Enhancement of the Molding Quality of Light Guide Plates by means of Multi-Coating Surface Treatments of the Injection Molding Screw
  • Jian R, Yang W, Xie P
  • 사출성형기 스크류의 다층코팅을 통한 도광판의 성형품질 향상
Abstract
The effects of different surface treatments of an injection molding screw have been investigated using light guide plates as a representative precision component. The quality of the fabricated light guide plates was compared for different screw coatings, using the stripping performance, surface microstructure and adhesion strength as criteria. In addition, the results obtained using different combinations of screw coatings were analyzed in order to identify the optimum screw surface treatment method for the large scale production of polycarbonate light guide plates. It was found that light guide plate parts fabricated using a screw with a TiAlN/Cr multi-coating had the best performance, with a defect percentage of only 0.11%, much lower than the value of 19.21% obtained using a screw with a conventional hard chrome coating.

Keywords: multi-coating; screw surface treatment; injection molding quality; light guide plate

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2017; 41(1): 112-118

    Published online Jan 25, 2017

  • 10.7317/pk.2017.41.1.112
  • Received on Jul 20, 2016
  • Accepted on Sep 27, 2016